<!DOCTYPE html>
<html>
<head>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<title></title>
	<style type="text/css">
		*{
			margin: 0;
			padding: 0;
		}
		.box{
			width: 200px;
			height: 200px;
/*			background-color: skyblue;*/
			margin: 100px auto;
			position: relative;
			animation: therr .5s linear infinite;
		}
		.one{
			width: 100px;
			height: 150px;
			border-top-left-radius: 50%;
			border-top-right-radius: 50%;
			border-bottom-right-radius: 20px;
			background-color: red;
			transform: rotate(-45deg);
			position: absolute;
			left: 10px;
			top: 8px;
		}
		.two{
			width: 100px;
			height: 150px;
			border-top-left-radius: 50%;
			border-top-right-radius: 50%;
			border-bottom-left-radius: 20px;
			background-color: red;
			transform: rotate(45deg);
			position: absolute;
			left: 46px;
			top: 8px;
		}
		@keyframes therr{
			0%{
				transform: scale(1.0);
			}
			100%{
				transform: scale(1.2);
			}
		}

	</style>
</head>
<body>
	<div class="box">
		<div class="one"></div>
		<div class="two"></div>
	</div>
</body>
</html>